Audio-Technica announced today it's offering the new SonicFuel in-ear headphones, six models designed to take musical enjoyment to greater sonic heights. All the headphones feature ergonomic C-tip earpieces that nestle in the ear for a stay-in-place fit, and the three "iS" models have an in-line controller with microphone and volume adjustment for managing phone calls and music/video playback. Other features like the innovative 360-degree rotating eartips, flat tangle-free cord and useful accessories are also available on various models throughout the line. The SonicFuel headphones include the ATH-CKX9iS, ATH-CKX9, ATH-CKX7iS, ATH-CKX7, ATH-CKX5iS and ATH-CKX5, with suggested U.S. retail prices ranging from $99.95 to $44.95. Here's more info:

The ATH-CKX9iS and ATH-CKX9 (U.S. SRP: $99.95 and $94.95) offer exceptional audio quality and comfort, thanks to their large 13.5 mm drivers that deliver surprisingly powerful, dynamic and immersive sound from an in-ear design, with exceptional clarity and detail. Both headphones have the same features except the ATH-CKX9iS (like all "iS" models) adds a microphone and a cord-mounted remote for iPhone, iPad, iPod, and other compatible smartphones and portable devices, enabling users to answer calls, control media and adjust volume.

The headphones have a flat, tangle-free cable that won't get in the way, and are available in black or silver. The ATH-CKX9iS and ATH-CKX9 come with S, M and L-sized C-tips, XS, S, M and L-sized eartips, and Comply TM Foam Tips that form to the shape of the ear canal. Both are supplied with a carrying case.

The SonicFuel ATH-CKX7iS smartphone-compatible model and ATH-CKX7 headphones (U.S. SRP: $79.95 and $74.95) feature newly designed 360-degree rotating eartips that adjust to the angles of the listener's ear canals, helping to create a perfect seal for maximum bass impact and sound isolation. Their compact enhanced driver systems deliver clear, robust sound. Available in black, white, blue, red and purple, the ATH-CKX7iS and ATH-CKX7 have a flat, tangle-free cord and are supplied with S, M and L-sized C-tips, XS, S, M and L-sized eartips, Comply Foam Tips and a carrying case.

The ATH-CKX5iS smartphone-compatible and ATH-CKX5 headphones set new price/performance benchmarks in the under-$50 category at U.S. suggested retail prices of $49.95 and $44.95, respectively. Both feature Audio-Technica's 360-degree rotating eartips and high-quality compact drivers for outstanding sound quality with impactful bass and isolation from outside noise. Both are available in black, white, red, blue and green. The ATH-CKX5iS and ATH-CKX5 come with S, M and L-sized C-tips, XS, S, M and L-sized eartips and a carrying pouch. SonicFuel headphones carry a two-year Audio-Technica manufacturer's warranty.